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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 415ed3cb..2f345b5d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -462,6 +462,7 @@ if test "x$warningflags" = "xyes" ; then
CFLAGS_ADD([-Wformat-nonliteral], [WARNING_CFLAGS])
CFLAGS_ADD([-Wformat-security], [WARNING_CFLAGS])
CFLAGS_ADD([-Wignored-qualifiers], [WARNING_CFLAGS])
+ CFLAGS_ADD([-Wimplicit-fallthrough], [WARNING_CFLAGS])
CFLAGS_ADD([-Winit-self], [WARNING_CFLAGS])
CFLAGS_ADD([-Wlogical-op], [WARNING_CFLAGS])
CFLAGS_ADD([-Wmissing-declarations], [WARNING_CFLAGS])